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Definition
| defined as any change in the inherited traits of a population of organisms from one generation to the next. |
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| Genetic Variation, sexual reproduction, and natural selection |
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| Three main factors causing change in Evolution |
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| descent with modification |
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Definition
| change in gene frequency over time |
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| Evolution occurs ONLY when... |
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Definition
| there is a change in gene frequency within a population over time. |
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| What matters in evolution |
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Definition
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Definition
| all the genes present in a population at any given time |
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Definition
| Expressed in terms of the frequency of the alleles |
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Definition
| a group of individuals that are able to interbreed in nature and forms a population |
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Definition
| variation in genes that are passed onto an organism's offspring and produce the inherited traits |
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Definition
| organisms showing heritable differences in their traits |
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| New traits arise in two main ways: |
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Definition
| mutation or transfer in genes |
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Definition
| heritable differences become more common or rare in a population |
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| Five Major mechanisms that drive evolution |
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Definition
| Natural selection, genetic drift, gene flow, nonrandom mating, and mutations |
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Term
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Definition
| process causing heritable traits that are helpful for survival to become more common in a population, and harmful traits to become more rare. |
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